661483908 has 36 divisors (see below), whose sum is σ = 1734015920. Its totient is φ = 220494312.

The previous prime is 661483897. The next prime is 661483909. The reversal of 661483908 is 809384166.

661483908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (661483909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339298 + ... + 341241.

Almost surely, 2^661483908 is an apocalyptic number.

It is an amenable number.

661483908 is an abundant number, since it is smaller than the sum of its proper divisors (1072532012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

661483908 is a wasteful number, since it uses less digits than its factorization.

661483908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680558 (or 680544 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 661483908 is about 25719.3294624879. The cubic root of 661483908 is about 871.3107945971.

The spelling of 661483908 in words is "six hundred sixty-one million, four hundred eighty-three thousand, nine hundred eight".